Revolution slider change background image on mobile

6 comments

1. So, in version 6 at least, you can do this by adding a shape layer with a background image and hide/show that layer depending on screen size.

   1. Make a new shape layer.
   2. Go to “Size & Pos” in the layer options.
   3. Set the “Size Presets” to Cover.
   4. Set the “Layer Align” to Scene.
   5. Go to “Visibility” in the layer options.
   6. Hide the layer on all the screen sizes you don’t want it to show on.
   7. Make sure your shape layer is at the bottom of the layer stack.
   8. Go to “Style” in the layer options.
   9. Pick a background image.
   10. Make sure it’s set to cover in the Position section.

   And that should do it. Hope that helps someone.

   You might have to fuss with the responsive settings. If you don’t really understand the nuances of these settings, I found this video (Slider Revolution 6.0 Responsive Settings) super helpful.

2. Initially, I didn’t think you could. But, it turns out that you can! You just have to make two sliders, then cleverly hide one or the other.

   If it’s just a matter of the picture dimensions, you can give each slider size a custom size. I have done this to accommodate not being able to read text on the slides when viewing on mobile. By stretching the height of the mobile version, I can now read the text on the images and, thus, problem solved.

   You can also just disable the slider when viewing on mobile, like this.

3. I’ve searched endlessly for the answer to this, and finally figured it out. The hiding option is no good if your theme is only calling one Slider per page.

   1) Install the Mobile Detect plugin.

   2) Find where the Slider is being called in your theme. For me it was in THEME/inc/template-hooks.php

   3) Find this code there:

   echo '<div id="main-slideshow">';
   putRevSlider($rev_slider);
   echo '</div>';
   

   4) Replace this with:

   echo '<div id="main-slideshow">';
   if ( wp_is_mobile() ) :
   putRevSlider("ALIAS OF MOBILE SLIDER HERE");
   else :
   putRevSlider("ALIAS OF DESKTOP SLIDER HERE");
   endif;
   echo '</div>';
   

   PRESTO!!!!

4. In the case where several sliders are initiated in the page, if you try to optimize for performance, Revslider still will load all background pictures, despite sliders will be hidden or visible.
   So this hiding solution helps only for visual improvements.

5. If your tempalte is using visual composer :

   Add Array-Variable to 2 functions in the file (plugins/js_composer/include/classes/vendors/plugins/class-vc-vendor-revslider.php) :

   addShortcodeSettings & mapShortcode :

       array(
       'type' => 'dropdown',
       'heading' => __( 'Revolution Slider (Mobile)', 'js_composer' ),
       'param_name' => 'aliasmob',
       'admin_label' => true,
       'value' => $revsliders,
       'save_always' => true,
       'description' => __( 'Select your Revolution Slider Mobile-View.', 'js_composer' ),
   )
   

   Now you can set 2 different sliders in backend-editor.

   At least put mobile detection from answer of “Jskillzz” to the file (plugins/js_composer/include/templates/shortcodes/rev_slider_vc.php) :

   Change from :

   $output .= apply_filters( 'vc_revslider_shortcode', do_shortcode( '[rev_slider ' . $alias . ']' ) );
   

   To :

   if ( wp_is_mobile() ) :
   $output .= apply_filters( 'vc_revslider_shortcode', do_shortcode( '[rev_slider ' . $aliasmob . ']' ) );
   else :
   $output .= apply_filters( 'vc_revslider_shortcode', do_shortcode( '[rev_slider ' . $alias . ']' ) );
   endif;
   

   PASTA!

   EDIT: Slides without Mobile Settings produce strange error, so we put 1 more option (checkbox) for set different mobile slide to false as default, like this :

   Add 1 More Variable in the 2 functions in (plugins/js_composer/include/classes/vendors/plugins/class-vc-vendor-revslider.php) :

           array(
               'type' => 'checkbox',
               'heading' => __( 'Use a different mobile Slider?', 'js_composer' ),
               'param_name' => 'mobileslide',
               'admin_label' => true,
               'value' => false,
               'save_always' => true,
               'description' => __( 'Check if you want use Mobile Slider.', 'js_composer' ),
           ),
   

   And in (plugins/js_composer/include/templates/shortcodes/rev_slider_vc.php) :

   if ($mobileslide == true) {
       if ( wp_is_mobile() ) :
       $output .= apply_filters( 'vc_revslider_shortcode', do_shortcode( '[rev_slider ' . $aliasmob . ']' ) );
       else :
       $output .= apply_filters( 'vc_revslider_shortcode', do_shortcode( '[rev_slider ' . $alias . ']' ) );
       endif;
   } else {
       $output .= apply_filters( 'vc_revslider_shortcode', do_shortcode( '[rev_slider ' . $alias . ']' ) );
   }
   

   Then is look like this, we can set mobile view function to true :

   Screenshot

6. GUI for changing background position is hidden a bit and you can find it here:

   

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